Have 4 textboxes in a form, when 1 textbox is done, is should automatically jump to next textbox (autofocus). When all textboxes have been filled in, the submit button should be enabled. Else it shouls be disabled. URGENT!!!

We are looking for a Xamarin and Azure developer to deliver our MVP app, who we will build an ongoing relationship with.
The initial stage is to develop a two screen app (plus start screen) as described in the attachment. We will immediately follow with the subsequent stages, to have a working prototype allowing us to work with our customers. We are breaking the initial delivery into small sta...

We are getting a large amount of brute force attempts on our WHMCS client area so we want to install Recaptcha on the login page.
Please only bid on this job if you can start very soon, complete the job within the next day and have previous experience with Google Recaptcha.
This job should barely take 15-20mins at max. I need a hook for it, so i can disable, and enable it whenever required.
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Need somebody to fix my Joomla website, which sends a lot of spam. Website needs from 2014 ( joomla3) to be analysed for security flaws and all affected extensions have to be upgraded or patched. If needed, Joomla has to be upgraded as well, in which case all extensions have to be made compatible with new version of Joomla. Payment will be released once my hosting provider confirms that there is n...

Add Captcha Anti-Spam to 2 web forms. Work live on our server. Unlimited changes until we accept the work. You might want to send screenshots so we know what it looks like beforehand. Work now, and finish today/during this weekend.

Classic ASP developer to fix form script.
Following security updates by our hosting company, ASP forms now require a valid sender email and a script update. , this has been updated and the new form now works again, BUT, the form validation/verification and CAPTCHA does not work, and users can now just submit without verification and CAPTCHA which is causing spam issues.

I need a developer to write a single Javascript validation pattern for use in validating a Full Address field on a WP Listings submission form.
Hard coding/execution of pattern is unnecessary if the built-in WP admin field accepts the pattern (see attached).